public OrderItem(Goods Good, int Count)
{
this.Good = Good;
this.Count = Count;
}
static void Main(string[] args)
{
//五种货物
Goods apple = new Goods("apple", 10.8);
Goods banana = new Goods("banana", 22.8);
Goods water = new Goods("water", 9.8);
Goods cake = new Goods("cake", 49.99);
Goods pencil = new Goods("pencil", 5.0);
//四位顾客
Customer Mike = new Customer("Mike", "New York");
Customer Ammy = new Customer("Ammy", "London");
Customer LiHua = new Customer("LiHua", "Shanghai");
Customer Koya = new Customer("Koya", "Tokyo");
OrderService os = new OrderService();
Order order1 = new Order(1, Mike);
order1.AddGoods(apple, 5);
order1.AddGoods(banana, 3);
order1.AddGoods(cake, 1);
os.AddOrder(order1);
Order order2 = new Order(2, Koya);
order2.AddGoods(apple, 5);
order2.AddGoods(pencil, 6);
order2.AddGoods(water, 8);
os.AddOrder(order2);
Order order3 = new Order(3, LiHua);
order3.AddGoods(pencil, 3);
// order3.AddGoods(pencil, 4); 会抛异常：“货品添加重复”
order3.AddGoods(cake, 1);
order3.AddGoods(water, 2);
os.AddOrder(order3);
Order order4 = new Order(4, Ammy);
order4.AddGoods(apple, 7);
order4.AddGoods(pencil, 8);
order4.AddGoods(water, 3);
os.AddOrder(order4);
Order order5 = new Order(5, Ammy);
order5.AddGoods(cake, 2);
order5.AddGoods(pencil, 15);
order5.AddGoods(water, 3);
os.AddOrder(order5);
Console.WriteLine("---查询所有账单，按照消费金额排序---\n");
os.QueryOrders();
Console.WriteLine("---查询Ammy的所有订单---\n");
os.QueryOrderByCustomer(Ammy);
Console.WriteLine("---将账单按照账单号排序---\n");
os.Sort((a, b) => a.ID - b.ID);
os.display();
Console.WriteLine("---将账单1的收件人改为李华---\n");
os.ChangeOrderCustomerAndAddress(1, LiHua);
os.QueryOrder(1);
Console.WriteLine("---删除所有李华的订单---\n");
os.DeleteCustomerOrder(LiHua);
os.display();
Console.WriteLine("---四号订单现在的货物是---\n");
os.QueryOrder(4);
Console.WriteLine("---货物更改成100个苹果后---\n");
List <OrderItem> list = new List <OrderItem>();
OrderItem oi = new OrderItem(apple, 100);
list.Add(oi);
os.ChangeOrderItem(4, list);
os.QueryOrder(4);
Console.ReadKey();
}